R E Behrman. Show Affiliations »
Abstract
Entities: Species
Mesh: See more » African AmericansFemaleHumansObstetric Labor, Premature/epidemiologyPregnancySocioeconomic FactorsUnited States
Year: 1987 PMID: 3627187 DOI: 10.1056/NEJM198709173171209
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245